Helen Slater is an American actress. She started her Hollywood career in the 1980s. Her debut was as the lead role in the movie Supergirl. She later became known for her performances in the films The Legend of Billie Jean, Ruthless People, The Secret of My Success, and City Slickers. She continued her career the following decade with film roles. In the 2000s, she played Lara-El on Smallville. She also starred in the film Seeing Other People. She later starred as Jennifer Brooks on Gigantic and as Kristin Mercer on The Lying Game. As of 2015, she plays the role of Eliza Danvers on Supergirl.